| article html file updated | 9 February 2020 04:59 CET | Update | https://www.mdpi.com/1424-8220/18/2/409 |
| article html file updated | 30 September 2019 09:19 CEST | Update | N/A |
| article html file updated | 1 May 2019 22:09 CEST | Update | N/A |
| article html file updated | 17 April 2019 20:55 CEST | Update | N/A |
| article html file updated | 28 March 2019 19:46 CET | Update | N/A |
| article html file updated | 14 March 2018 18:45 CET | Update | N/A |
| article html file updated | 31 January 2018 10:16 CET | Original file | N/A |
| article xml uploaded. | 31 January 2018 10:15 CET | Original file | https://www.mdpi.com/1424-8220/18/2/409/xml |
| article pdf uploaded. | 31 January 2018 10:15 CET | Version of Record | https://www.mdpi.com/1424-8220/18/2/409/pdf |
